Home / 8,319,089.80-12,480,384.30-4,721,912.20

Finding the Fourth Proportional to 8,319,089.80, 12,480,384.30 and 4,721,912.20

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Solution

The fourth proportional to 8,319,089.80, 12,480,384.30 and 4,721,912.20 is: 7,083,861.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,089.80 : 12,480,384.30 = 4,721,912.20 : x
  2. Step 2: Convert to fraction form
    8,319,089.80/12,480,384.30 = 4,721,912.20/x
  3. Step 3: Cross multiply
    8,319,089.80x = 12,480,384.30 × 4,721,912.20
  4. Step 4: Simplify right side
    8,319,089.80x = 58,931,278,886,858.47
  5. Step 5: Solve for x
    x = 58,931,278,886,858.47/8,319,089.80
  6. Step 6: Final answer
    x = 7,083,861.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.